Upper-roughing machine



w. c. CARD, JR UPPER nouanme MACHINE Sept. 27, 1932 Filed May 29, 1929 Elwmmtoz 'WILLIAM c. calm, as, or WAVERLY,

mcnmaav conrorwrxon, or NEW YORK, 11.

Patented Sept. 21, 1932 1 MASSACHUSETTS, ASSIGNOB T COMPO SHOE Y., A CORPORATION OF DELAWARE UPPEB-BOUGHING MACHINE Application filed Kay 29,

This invention relates to machinery for manufacturing footwear, and, more particularly, to mechanism for preparing a lasted shoe upper prior to the aflixation of an outer sole thereto by means of an adhesive cement.

A general object of the invention is to provide a mechanism by which the lasting allow ance of the lasted upper may be uniformly roughed so that the leather or other material of which the lasting allowance is composed will readily accept the adhesive cement and will form a firm union with the outer sole when afiixed thereto.

- A more specific object of'the invention is to provide a roughing machine which will rapidly, uniformly and efliciently rough the lastin allowance of shoe uppers of varied materials, which will be simple and economical, of construction, and which will operate with freedom from wear and mechanical difficulties.

' Other objects of the invention will .in part be obvious and will in part appear hereinafter.

The invention accordingly comprises the features of construction, combination of elements and arrangement of parts which will be exemplified in the construction hereinafter set forth and the scope of the application of which will be indicated in the claims.

For a fuller understanding of the nature and objects of the invention reference should be had to the following detailed description taken inconnection with the accompanying drawing, in which:

Figure 1 is a front elevational view of one embodiment of the invention, shown partially broken away;

Fig. 2 is an end elevation of Fig. 1; Fig. 3 is a composite plan and side elevational view of the roughing element shown in Figs-1 and 2; and

Fig. 4, is a view similar to Fig. 3, showing another form of roughing element.

In the manufacture of footwear, leathers and fabrics having widely differing characteristics are used,.and when the outer soles are to be aflixed thereto by an adhesive cement it is necessary that the lasting allowance of the lasted'upper be prepared to re- 1929. Serial 1V0. 866,827.

ceive the adhesive cement and to form a firm union or bond with the outer sole when affixed thereto. In accordance with the principles of the present invention it has been found that such treatment may be uniformly and effectively accomplishedby means of a rotating roughing element, against the operating edge of which the lasting allowance of the lasted upper is held.

Referring more particularly to the drawing, it will be seen from Fig. 1 that the rotating roughing elements may be conveniently mounted upon a horizontal spindle of the bench type, such as is ordinarily used on bench-mounted emery wheels .and the like. More specifically, the device may comprise a base 10 adapted support, such as a bench 11, a sub-base 12 having bearings 13 in which is mounted a rotat able spindle 14. The spindle 14 may be power-driven in any suitable manner, such as, for example, a belt-pulley 15, in which case it is preferably also provided with-an idler-pulley 16 and a belt-guide 17 which is shiftableaxially with'respect to the spindle 14 on a suitably-supported rod 18 by means ofa handle 19.

Mounted upon the element 20, which will be more particularly described hereinafter and which is preferably enclosed within the housing 21 connected to a suction-pipe 22 and has a removable front plate 23 provided with an opening to be seeured'to a suitablespindle 14is a roughing 24 through which only a portion of the pel riphery of the roughing element is exposed.

Generally considered, the roughing element 20 is of a width of one-half inch or more and is provided on its circumferential face with a plurality of teeth 25, each of which is angularly disposed thereon and is preferably divided into a plurality of toothed elements 26, so that, considering any given tooth 25, each of the toothed elements 26 is circumferentially displaced with respect to the adjacent toothed element. Such a construction is found to act uniforml upon thematerial of which the lasting al owance of the upper is composed withouttearing it or ripping it loose from the inner sole of the lasted upper. Y

In the form of roughing element shown in Fig. 3, each of the toothed elements 26 of any given tooth 25 is formed on a relatively thin plate 27, whereby the roughin element '5 20 is composed of a plurality of aterallydescription the rotating spindle 14 has been shown and described as a belt-driven spindle affixed with respect to a supporting element, it is to be understood that without departing from the spirit of the invention the spindle may be otherwise driven and need not be aifixed, in which latter case the rotating roughing element may be utilized as a hand tool. It is preferred, however, that the spindle be fixed in order that the lasting allowance of. the lasted upper may be held thereagainst in the manner indicated.

It will thus be seen that by means of the present invention there has r en provided a device which will rapidly and efiiciently perform the desired roughing operations on the lasting allowance of the lasted upper in the manner described above, and since certain changes may be made in the above construction, and diilerent embodiments of the invention could be made, without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawing shall be interpreted as illustrative and not in a limiting sense.

It is also to be understood that the following claims are intended to cover all of the generic and specific features of the invention herein described, and all statements of the scopeof the invention which as a matter of Ian uage might be said to fall therebetween.

aving described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A roughing machine for lasted shoe uppers, comprising a. rotatable roughing element having angularly-disposed circumferential picking teeth adapted to rough the lasting allowance of a lasted upper to enable the same to be firmly cemented to an outer sole, and means for rotating said element;

each of said teeth comprising a plurality of toothed elements.

2. A roughing machine for lasted shoe up- 50 pers, comprismg a rotatable roughing element having angularly-disposed circumferential toothed elements adapted to rough the lasting allowance of a lasted upper to enable.

the same to be firmly cemented to an outer sole, and means for rotating said element;

each of said toothed elements having a pluprising a plurality of angularly-disposed circumferential teeth, each of said teeth comprising a plurality of toothed elements each circumferentially displaced with respect to its adjacent toothed element for any given tooth, and a guard element for said roughing element which exposes only a limited portion of the periphery thereof.

4. A roughing machine for lasted shoe uppers, including, in combination, a fixed base, a rotatable spindle mounted on said base, means for rotating said spindle, a roughing element adapted to rough the lasting allowance of a lasted upper to enable the same to be firmly cemented to an outer sole mounted on said spindle ard to be driven thereby; said roughing element comprising a plurality of laterally and adjacen'tly-disposed toothed plates mounted normally with respect to said spindle, each of said plates being disposed so that its teeth are circumferentially displaced with respect to the teeth of the adjacent plate.

5. A roughing machine for lasted shoe uppers, including, in combination, a fixed base, a rotatable spindle, mounted on said base, means for rotating said spindle, a roughing element adapted to rough the lasting allowance of a lasted upper to enable the same to be firmly cemented to an outer sole mounted on said spindle and to be driven thereby; said roughing element comprising a plurality of laterally and adjacently-disposed toothed plates mounted normally with respect to said spindle, each of said plates being disposed so that its teeth are contiguous to, but slightly advanced circumferentially withrespect to,

the teeth of the adjacent plate.

6. A roughing machine for lasted shoe uppers, including, in combination, a fixed base, a rotatable spindle mounted on said base. means for rotating said spindle, a roughing element mounted on said spindle and to be driven thereby; said roughing element having ,angularly-disposed circumferential teeth, each of which is continuously serrated to provide-a plurality of rasping elements which are adapted to rough the lasting allowance of a lasted upper to enable the same cemented to an outer sole.

In testimony whereof I afiix my signature.

WILLIAM G. CARD, JR.

to be firmly 

